Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 5942452 | Antiskid fabric Composite fabrics particularly suited for upholstery backings and furniture decking comprise at least one layer of a needlepunched web of nonwoven staple fibers adhered to at least one layer of a substantially continuous filament nonwoven web comprising s... | 08/24/1999 |
| 5930730 | Method and apparatus for seismic signal processing and exploration A method, a map and an article of manufacture for the exploration of hydrocarbons. In one embodiment of the invention, the method comprises the steps of: accessing 3D seismic data; dividing the data into an array of relatively small three-dimensional cell... | 07/27/1999 |
| 5916958 | Flame retardant thermoplastic compositions Compositions comprising poly(biphenyl ether sulfone) PTFE and titanium dioxide exhibit enhanced flame retardant characteristics. Blends of the formulations may further comprise poly(aryl ether ketone) or another poly (aryl ether sulfone).... | 06/29/1999 |
| 5906664 | Fuels for diesel engines The invention relates to high energy, oxygenated fuel compositions suitable for use in compression ignition internal combustion engines which fuel compositions contain a synergistic combination of dimethyl ether, methanol, and water, the combination provi... | 05/25/1999 |
| 5890538 | Reverse circulation float equipment tool and process A user-friendly reverse circulation float equipment tool and process permit the application of reverse circulation cementing in shallow or deeper wells, without having to use an inner string. The reverse circulation float equipment tool can have: an upper... | 04/06/1999 |
| 5892732 | Method and apparatus for seismic signal processing and exploration A method and apparatus for the exploration of hydrocarbons comprising the steps of: obtaining a set of seismic signal traces distributed over a predetermined three-dimensional volume of the earth; dividing the three-dimensional volume into a plurality of ... | 04/06/1999 |
| 5885481 | Efficiency oxygen-scavenging compositions and articles Oxygen-scavenging compositions comprising an oxidizable metal component and a solid, halogen-free, acidifying electrolyte component and, optionally, a water-absorbant binder and/or a polymeric resin exhibit good oxygen-scavenging performance and oxidation... | 03/23/1999 |
| 5878817 | Apparatus and process for closed loop control of well plunger systems A well plunger system for the production of natural gas is described. The well plunger system includes a closed loop controller for the production of natural gas. The well plunger system includes a plunger tube positioned within a casing of a gas well, a ... | 03/09/1999 |
| 5877375 | Production of monoolefin oligomer A monoolefin oligomerization process which gives high yields of dimer and trimer at high monoolefin conversions in a single stage reaction is described. The process involves contacting a C6-20 vinyl olefin with a catalyst comprising boron trifl... | 03/02/1999 |
| 5877378 | Process for selective utilization of alpha-olefins in mixtures containing non-alpha-olefins The alpha-olefin content of mixed hydrocarbon streams is selectively utilized to produce trialkylaluminum compounds in which the alkyl groups are linear primary alkyl groups. This selective utilization is accomplished by use of a specific, highly selectiv... | 03/02/1999 |
| 5870691 | Spectral decomposition for seismic interpretation The present invention is directed generally toward a method of processing seismic data so as to provide improved quantification and visualization of subtle seismic thin bed tuning effects and other sorts of lateral rock discontinuities. A reflection from ... | 02/09/1999 |
| 5863419 | Sulfur removal by catalytic distillation A product of reduced sulfur content is produced from a feedstock which is comprised of a mixture of hydrocarbons and contains organic sulfur compounds as unwanted impurities. The process comprises converting at least a portion of the sulfur-containing imp... | 01/26/1999 |
| 5860475 | Mixed well steam drive drainage process A thermal oil recovery process is disclosed for use in a heavy oil reservoir having a plurality of laterally separated, generally vertical wells whose use have left the reservoir characterized by a heated depletion zone, a channel, voidage, or mobility an... | 01/19/1999 |
| 5856592 | Continuous vapor phase process for direct conversion of methanol to higher alcohols A continuous vapor phase processes for direct condensation of methanol and/or dimethyl ether with dilute acetylene feedstream to a mixture containing at least one higher molecular weight alkanol, such as n-propanol or isobutanol, over an alkaline catalyst... | 01/05/1999 |
| 5856607 | Process for production of ethylbenzene frome dilute ethylene streams The present invention relates to a process for the production of ethylbenzene from dilute ethylene streams, especially from mixtures of ethane and ethylene where such mixture is the offgas from a refinery operation, such as a fluid catalytic cracking (FCC... | 01/05/1999 |
| 5853565 | Controlling thermal coking The invention provides a method for controlling the relative proportion of products produced from a petroleum residuum by thermal coking. Coke yield promoting compounds are identified, and effective attenuating agents are specified. The method can mitigat... | 12/29/1998 |
| 5849974 | Olefin isomerization process Described is a process for isomerizing -olefin to produce olefinic oil having a viscosity at 100° C. of no more than about 1.6 cSt, a viscosity at 40° C. of no more than about 3.8 cSt, and a pour point of 0° C. or lower, preferably -10° C. or l... | 12/15/1998 |
| 5849504 | Nucleic acid probes and methods for detecting Pneumocystis carinii The invention features nucleic acid probes and methods for detecting Pneumocystis carinii (e.g., human or ferret P. carinii) in hybridization assays.... | 12/15/1998 |
| 5849965 | Multistage alkylation process In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a portion of the effluent from the primary stage is used as a... | 12/15/1998 |
| 5850622 | Time-frequency processing and analysis of seismic data using very short-time fourier transforms The present invention relates generally to method of seismic data processing which provides a superior method of removing or attenuating some forms of seismic noise and can also be used as a basis for seismic attribute analysis and automatic trace editing... | 12/15/1998 |
| 5843667 | Nucleic acid probes for the detection for genital mycoplasmas Nucleic acids having approximately 10 to 250 nucleotides which are capable of hybridizing to rRNA and rDNA of mycoplasma etiological agents of nongonococcal urethritis, pelvic inflammatory disease, salpingitis, and other infections due to mycoplasmas from... | 12/01/1998 |
| 5843783 | Tagging hydrocarbons for subsequent identification A method for tagging hydrocarbons and for detecting the presence of tagged hydrocarbons in a hydrocarbon mixture. The method can be utilized to tag gasoline, diesel fuel, heating oil, lubricating oil or crude petroleum. The hydrocarbon to be tagged is ble... | 12/01/1998 |
| 5843862 | Process for manufacturing an absorbent composition A process for manufacturing a collapsed composition is described in which the manufactured composition is substantially composed of microcrystallites collectively of the formula: ##EQU1## where M2+ is a divalent metal, M3+ is ... | 12/01/1998 |
| 5837128 | Method for grading cylindrical catalyst particles in a bed to reduce pressure drop A method is disclosed for optimizing the pressure drop in the catalytic conversion of a feed in a bed of catalyst particles in a vertically arranged reactor by grading the catalyst particles within the bed by pressure drop.... | 11/17/1998 |
| 5838564 | Apparatus for seismic signal processing and exploration An apparatus for the exploration of hydrocarbons by obtaining a set of seismic signal traces distributed over a pre-determined three-dimensional volume of the earth and using a computer to: divide the three-dimensional volume into a plurality of verticall... | 11/17/1998 |
| 5835452 | Reflected shear wave seismic processes A method for measuring and using anisotropy in a coal bed sequence. The method includes the steps of: stripping layers where polarization changes are indicated by applying a static shift to components aligned with the slow shear wave polarization directio... | 11/10/1998 |
| 5827356 | Continuous process for recovery of acetylene-free gaseous mixture A continuous process for recovery of acetylene-free gaseous mixture from gaseous feedstreams containing acetylene and optionally other low molecular weight hydrocarbons by contacting the acetylene-containing feedstream with an alkanol in combination with ... | 10/27/1998 |
| 5824833 | Dimerization catalyst and process using alkyl aluminum alkoxide A process for producing an vinylidene olefin of the formula ##STR1## where R1 and R2 are the same or different and are hydrogen or alkyl and m is an integer of from 0 to 18, with a catalytically effective amount of a mixture of ... | 10/20/1998 |
| 5823683 | Self-seaming produce bag The present invention provides an improved produce bag comprising an open, mesh-like fabric suitable for processing on automated bagmaking equipment. The bag has a sealed end, an open end capable of being sealed after filling of the bag and a longitudinal... | 10/20/1998 |
| 5817908 | Staged alkylation process A staged alkylation process in the presence of an acid catalyst in a fixed bed of particulate contact material in an alkylation reactor is disclosed.... | 10/06/1998 |
| 5813455 | Chemical dispensing system An apparatus and method for automatically dispensing chemical sticks into a well bore is provided. In the preferred form, the apparatus is for dispensing soap sticks to unload an oil/gas producing well of fluid, e.g., salt water, built-up therein. The app... | 09/29/1998 |
| 5811616 | BF3 gas recovery process BF3 is vaporized from specified crude polyolefin reaction product mixture in a vaporization zone at a temperature insufficient to decompose BF3 or any BF3 promoter complex in the mixture, and the vaporized BF3 m... | 09/22/1998 |
| 5811618 | Ethylene trimerization Ethylene is trimerized to form 1-hexene by using a catalyst comprising an aluminoxane and polydentate phosphine, arsine, and/or stibine coordination complex of a chromium salt. Catalysts, complexes, and ligands enabling production of 1-hexene in extremely... | 09/22/1998 |
| 5811617 | Olefin oligomerization process Alpha-olefin oligomer is prepared by contacting an alpha-olefin monomer which contains from about 8 to about 16 carbon atoms with a heterogeneous catalyst system formed from (i) a solid olefin polymer having a linear backbone and a plurality of pendant om... | 09/22/1998 |
| 5804126 | Process for making preforms useful for encapsulating semiconductors Preform useful for encapsulating semiconductors and other electric or electronic devices are prepared by a process which comprises warming thermoset resin to form a melt, injecting it into a mold, and cooling to form a solidified molding, all without subs... | 09/08/1998 |
| 5803171 | Modified continuous drive drainage process A method of producing hydrocarbons from a subterranean formation. The method includes the steps of: building an array of at least three horizontal wells; establishing injectivity in the formation; establishing communication between adjacent horizontal sec... | 09/08/1998 |
| 5802011 | Pressure signalling for fluidic media A method and apparatus for remotely generating pressure signals in a fluid stream for telemetry purposes with minimal insertion loss and susceptibility to blocking flow of the fluid stream by providing a straight through acceleration path for the fluid st... | 09/01/1998 |
| 5792894 | Conversion of aromatic and olefins A process is disclosed for alkylating a volatile aromatic compound with a light aliphatic mono-olefinic alkylating agent and concurrently condensing the alkylating agent in the presence of a solid alkylation- and condensation-promoting catalyst and at a t... | 08/11/1998 |
| 5792722 | Catalysts for the production of maleic anhydride by the oxidation of butane A catalyst for the production of maleic anhydride by oxidation of butane and a process for the production of a catalyst using phosphoric acid and glycol ether solvents.... | 08/11/1998 |
| 5792854 | Detection of salmonella Nucleic acid fragments capable of hybridizing to rRNA of a Salmonella species and not capable of hybridizing to rRNA of Escherichia coli.... | 08/11/1998 |
